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Thermal Physics

glass

8. The apparatus shown in figure consists of four glass columns connected by horizontal sections. The height of two central column B and C are 49 cm. each. The two outer columns A and D are open to the atmosphere. A and C are maintained at a temperature of 950C while the columns B and D are maintained at 50C. The height of the liquid in A and D measured from the base line are 52.8 cm and 51 cm respectively. Determine the coefficient of thermal expansion of the liquid.

Profile image of juhi ranjan
14 Years agoGrade
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1 Answer

Profile image of Aman  Bansal
14 Years ago

Dear Juhi,

As the liquid in the horizontal tube PQ is at rest,gauge pressure at P and Q will be equal.

=> Po + (rho*g*ha)5 - (rho*g*hb)95 = Po +(rho*g*hd)5- (rho*g*hc)95

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